The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1998
Filed:
Oct. 15, 1996
Applicant:
Inventors:
Toshiya Tanabe, Kawaski, JP;
Tohru Nakamura, Kawaski, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435261 ;
Abstract
A method for removing cells from a fermentation broth obtained by culturing a microorganism belonging to the genus Escherichia through a membrane to separate the cells, comprising adding polyethyleneimine to the fermentation broth to form a mixture, and then filtering the mixture through the membrane to separate the cells, said method resulting in improving the membrane permeation rate compared to when no polyethyleneimine is added.